javascript：如何调试键盘事件 [英] javascript: How to debug keyboard events

问题描述

想想一下一个使用自定义键盘事件处理程序的Web应用程序，它可能会发生事件冒泡或事件捕获。

有没有办法（例如Firefox / Firebug addon）来调试每个按键/键盘事件，例如：

• 显示事件类型和所有属性


• trace这个JavaScript方法被称为


• ，在事件冒泡的情况下，还有其他方法被调用

澄清我的问题：我不知道哪些方法处理程序存在和定义在哪里 - 这是我想要找出的。

解决方案

您可以尝试通过Firebug + Eventbug 扩展名。

有关不同浏览器中键盘事件的一般概述，请尝试： http://unixpapa.com/js/key.html

Imagine a web application which uses custom keyboard event handlers which might do event bubbling - or event catching.
Is there a way (e.g. Firefox/Firebug addon) to debug each keystroke/keyboard event, something like:

• displaying the event type and all attributes
• trace which javascript method had been called
• in case of event bubbling which further methods have been called

To clarify my question: I don't know which method handlers exist and where they are defined - this is what I am trying to find out.

解决方案

You could try to visualize the vents with the Firebug + Eventbug extension.

For a general overview on keyboard events in different browsers, try this: http://unixpapa.com/js/key.html

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